16886774520 has 288 divisors, whose sum is σ = 68943944160. Its totient is φ = 3508876800.

The previous prime is 16886774483. The next prime is 16886774521. The reversal of 16886774520 is 2547768861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16886774521) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 277230 + ... + 332610.

It is an arithmetic number, because the mean of its divisors is an integer number (239388695).

Almost surely, 2^16886774520 is an apocalyptic number.

16886774520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16886774520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34471972080).

16886774520 is an abundant number, since it is smaller than the sum of its proper divisors (52057169640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16886774520 is a wasteful number, since it uses less digits than its factorization.

16886774520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55427 (or 55409 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 16886774520 in words is "sixteen billion, eight hundred eighty-six million, seven hundred seventy-four thousand, five hundred twenty".